these 6 derivations will be built:
  /nix/store/j3v672jbmqq0kzz72nf2zhxcdpicxp78-iets-0.1.0.drv
  /nix/store/v2mh6w1g1kc8jr15d7qkgdwx40szdj70-closure-info.drv
  /nix/store/bqvahw2ab0w7630hz9n1d415sm1q1fsw-test-script.drv
  /nix/store/30lp7qfxj25bpwfxbw6xcprls211aabp-driverConfiguration.json.drv
  /nix/store/7ciammhrm51pd5qlqay24bhpp3f84nnj-nixos-test-driver-iets-cachetest.drv
  /nix/store/i2gkihazc7xfbynpfnfhiddmzpwsjh35-container-test-run-iets-cachetest.drv